干旱区生态环境知识资源中心(Arid): The sensitivity of Neotoma to climate change and biodiversity loss over the late Quaternary

Arid

DOI	10.1017/qua.2021.29
	The sensitivity of Neotoma to climate change and biodiversity loss over the late Quaternary
	Tome, Catalina P.; Lyons, S. Kathleen; Newsome, Seth D.; Smith, Felisa A.
通讯作者	Tome, CP (corresponding author)，Univ Nebraska, Sch Biol Sci, Lincoln, NE 68588 USA. ; Tome, CP (corresponding author)，Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA.
来源期刊	QUATERNARY RESEARCH
ISSN	0033-5894
EISSN	1096-0287
出版年	2022
卷号	105
英文摘要	The late Quaternary in North America was marked by highly variable climate and considerable biodiversity loss including a megafaunal extinction event at the terminal Pleistocene. Here, we focus on changes in body size and diet in Neotoma (woodrats) in response to these ecological perturbations using the fossil record from the Edwards Plateau (Texas) across the past 20,000 years. Body mass was estimated using measurements of fossil teeth and diet was quantified using stable isotope analysis of carbon and nitrogen from fossil bone collagen. Prior to ca. 7000 cal yr BP, maximum mass was positively correlated to precipitation and negatively correlated to temperature. Independently, mass was negatively correlated to community composition, becoming more similar to modern over time. Neotoma diet in the Pleistocene was primarily sourced from C-3 plants, but became progressively more reliant on C-4 (and potentially CAM) plants through the Holocene. Decreasing population mass and higher C-4/CAM consumption was associated with a transition from a mesic to xeric landscape. Our results suggest that Neotoma responded to climatic variability during the terminal Pleistocene through changes in body size, while changes in resource availability during the Holocene likely led to shifts in the relative abundance of different Neotoma species in the community.
英文关键词	megafaunal extinction small mammal response Edwards Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000749708100005
WOS关键词	WOODRATS NEOTOMA ; BODY-SIZE ; BERGMANNS RULE ; NORTH-AMERICAN ; MEGAFAUNAL EXTINCTION ; DIETARY RESPONSES ; VEGETATION CHANGE ; CARBON ISOTOPES ; DESERT RODENTS ; CENTRAL TEXAS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376734
作者单位	[Tome, Catalina P.; Lyons, S. Kathleen] Univ Nebraska, Sch Biol Sci, Lincoln, NE 68588 USA; [Tome, Catalina P.; Newsome, Seth D.; Smith, Felisa A.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA
推荐引用方式 GB/T 7714	Tome, Catalina P.,Lyons, S. Kathleen,Newsome, Seth D.,et al. The sensitivity of Neotoma to climate change and biodiversity loss over the late Quaternary[J],2022,105.
APA	Tome, Catalina P.,Lyons, S. Kathleen,Newsome, Seth D.,&Smith, Felisa A..(2022).The sensitivity of Neotoma to climate change and biodiversity loss over the late Quaternary.QUATERNARY RESEARCH,105.
MLA	Tome, Catalina P.,et al."The sensitivity of Neotoma to climate change and biodiversity loss over the late Quaternary".QUATERNARY RESEARCH 105(2022).